<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
    <form id="index_form" name="index_form" role="form" method="post" class="form-horizontal" enctype="multipart/form-data">
      <table>
           <tr>  <td> 图片一 : <input id="pic1" name="pic1" type="file" onchange="pic1()"/> </td>  </tr>
           <tr> <td>  图片二 : <input id="pic2" name="pic2" onchange="pic2()" type="file" /> </td>   </tr>
           <tr> <td>  图片三: <input id="pic3" name="pic3" onchange="pic3()" type="file" /></td>  </tr>                      
      </table> 
<input class="btn btn-primary" value="提交" type="submit" /> 
</form>
</body>
</html>